INT 61 - Banyan VINES - "Sosend" - INITIATE OUTPUT EVENT
	AX = 0001h subfn 0002h
	DS:DX -> communications control block (function 0002h) (see #03329)
Return: AX = status (0000h-0002h,0097h,009Bh-009Dh,00A2h,00A3h,00B1h)
	    (see #03325)
Range:	INT 60h to INT 66h
Note:	The Banyan interrupt handler is identified by the string "BANV" in
	  the four bytes immediately preceding the interrupt handler
SeeAlso: AX=0001h/SF=0001h,AX=0001h/SF=0005h


Format of VINES control block for subfunction 0002h:
Offset	Size	Description	(Table 03329)
 00h	WORD	0002h
 02h	WORD	pointer to argument block (see #03330)
 04h	WORD	error return code (0000h,0097h,00A2h,00A3h,00A5h,00A6h,00B1h)
		(see #03325)
 06h  4 BYTEs	reserved
SeeAlso: #03334


Format of VINES argument block for subfunction 0002h:
Offset	Size	Description	(Table 03330)
 00h	WORD	routine metric
 02h	WORD	error return code
 04h	WORD	socket identifier
 06h	WORD	pointer to send buffer (see #03332)
 08h	WORD	length of send buffer
 0Ah	WORD	message request flags (see #03331)
 0Ch 16 BYTEs	socket address (see #03333)
 1Ch	WORD	timeout value in multiples of 200ms
 1Eh	WORD	connection identifier
 20h	WORD	type of request
		0001h send message
		0002h establish a virtual connection
		0003h terminate a virtual connection
SeeAlso: #03329,#03335


Bitfields for message request flags:
Bit(s)	Description	(Table 03331)
 0	async request
 1	reliable message
 2	flush receive buffer on overflow
 3	end of user message received
 4	vectored request (if set, send buffer contains buffer descriptors)
 5	connection-specific receive
 6	change to connection-specific receive mode
SeeAlso: #03330,#03335


Format of buffer descriptor:
Offset	Size	Description	(Table 03332)
 00h	WORD	data segment
 02h	WORD	buffer pointer
 04h	WORD	buffer length
 06h	WORD	character count
SeeAlso: #03330


Format of VINES socket address for unreliable datagrams:
Offset	Size	Description	(Table 03333)
 00h	WORD	0003h	  address family
 02h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	FFFFFFFFh network number
 06h	WORD	FFFFh	  subnet number
 08h	WORD		  local port number
 0Ah	BYTE	00h-0Fh	  hop count
 0Bh  5 BYTEs	0000h	  filler
SeeAlso: #03328